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Classification of Leukocytes

Classification of Leukocytes

Leukocytes are classified into two groups based on the presence or absence of cytoplasmic granules. Granular leukocytes, which contain granules, belong to the myeloid lineage and are divided into three subtypes: neutrophils, eosinophils, and basophils. These cells are roughly spherical and characterized by the granules in their cytoplasm.
Neutrophils are the most abundant type of granular leukocytes, comprising 50-70% of all leukocytes. They feature small, evenly distributed granules and a...

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Updated: Jun 9, 2026

Enumeration of Major Peripheral Blood Leukocyte Populations for Multicenter Clinical Trials Using a Whole Blood Phenotyping Assay

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Toward a More Complete High-Resolution Human Leukocyte Antigen Reference for Koreans

Inseong Oh¹, Eun Young Song¹

¹Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Korea.

Annals of Laboratory Medicine

|June 7, 2026

Summary

No abstract available in PubMed .

Keywords:

Allele frequency HLA Haplotype frequency NGS-based HLA typing Organ transplantation Population genetics

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